Rumblings

Solar-powered balloons launched into the Earth's stratosphere have recorded a series of mysterious rumblings, and scientists can't pinpoint their origins. The noises, detected by specialized instruments at 70,000 feet above the Earth's surface, are known as infrasound because they are so low-pitched they are inaudible to human ears. Picked out from among a wash of hidden low-frequency sounds — including thunder, ocean waves, rocket launches, cities, wind turbines and even planes, trains and automobiles — the strange…

Pokemon Go Tour: Hoenn goes live globally at the end of February, but Niantic has now announced Primal Rumblings, which is a short preview event that ends the day before Go Tour begins.The Pokemon Go Primal Rumblings event begins February 22 at 10 AM local time, and it will run until February 24 at 10 AM local time. Multiple Pokemon from the Hoenn region of Pokemon Ruby and Sapphire will appear in the wild, while the legendary Pokemon Rayquaza, Mega Latias, and Mega Latios will return to five-star and…